BELMONT No. .60 SWAN BUTTER (OMN)
Belmont Glass Works., introduced 1884
• NOTE: Ref: The Belmont Glass Works -- 1866-1890 by Sid Lethbridge & Peter Thomas
NOTE: Sid Lethbridge: There are two styles of bases - footed…and flat. Found in crystal, amber, blue, all the above frosted and opal (opaque white).